



INVENTOR. MUR/TZ 1 RANJEEN the envelope of the other has to the rear side h d heen eentrally attaehed to the nap of the envelope. e button and sti-in fastening nieans pern-iits envelope to he easily opened, and r losed a plurality of tin-ies. This is a great in any l* t-o the 25 envelope is reused, as for transporting interoniee and interplant eornniunieations, where the envelopes are used base sheet b nie s o a flat reinforeing elenient 1s, as for storage purposes, for thirdselass niailing, and the shown, for exarnple, in FIGURES 2 and 4. e other like. For sueh tti-poses. the button and string fasteners segment 14 f the nexible base sheet is provided with are vastly superior to in al fasteners used for an l t with he exoeption purpose, whieh have a relatively short life. that a length of strong string or eord material 19 is serrhe provision of button an string fasteners adds to the eured to the baeleing sheet on the same side as the uteost of an envelope so that it is not. eeonoi-nieally feasA tons al ng with the dise 1s h rneans of the eyelet 17. ihle for a e niaintain a stools for variously sized The string 19 rnust he of a length suieient to permit it to and graded envelopes Vastened in this nianner, unless he es extend to the other button a n wra p several tinies has frequent need or sueh envelopes. is, eourse, around the shank of that button. referahl it is several uneeonornie for on o us envelope provided wi h tin-ies this rninirnurn length and s about 4 inehes a temporary fastening deviee by se in esi e to one foot long. eoated nap in e eonventional man e ost sn-ial Although shown to be eireular in shape, the dise or oniees have s e infr quent need for envelopes having ao washers 16 n-iay just as well be in the foi-ni of triangles. temporary fastening means, although t dein nd s n s u s hexagons, or other polygonal shap desired. sufe to nt 1 ing f sueh envelopes. Likewise, the shape of the reinforeing lernent ini It is to this large oup of eensuniers that the prent inmaterial. fastener buttons 16 are preferably forrned vention is partieularly addi-insee. from relatively in, but sti-Y, be h ar dboard, It is e prineipal ohjeet of this invention to provide as heavy kr t paper, or the like although they may, a fastening ineans eoinprised of a pair of buttons seeured sired, be for ed from relatively stiff, thin synthetie to on side of exible bas sheet, the opposite side of resinous pla `e a e r me al, if desired, The eyelets the hase sheet being provided with an adhesive layer and 17 e preferably forined of nietal suon as brass or aluthe base being severable so as to erniit adherenee of one niinuni, u sorne instanees, synthetie resinous of the fastening buttons to e nap n envelope and plastie eyelets s eh as, for example, polyvinyl butyrate adherenee other fastening button to e r ar body may he used. of an envelope in order to eonvert any eonventional en- The side of the nexible base sheet opposite to the butvelope to one having a temper ry elosure. ton fastening elements is provided with a thin layer of t is another obieet of thi invention to pr r1 v t l zo as how in GURE 2. e adrary fastening rneans for seeuring si-nall packages, rolls of hesive material 2o is desirably a moisture sensitive subsheet nsateia-al, and the like. stauee sueh a anin-ial or soine purposes, however, ther obieets of the invention will beeonie apparent as it is desirable to ein l y a pressure sensitive adhesive the description proceeds, niaterial. r.v -his is illustrated i e oditied forrn of e o e aeeoniplishrnent of the foregoing and related invention shown in HGU 4 wherein e fastening ends, this invention en eo rises the features erei` means 10A is provided on its rear surfaee with a. layer after fully deseribed and partieularly pointed out in th of pressure sensitive adhesive niatei-ial ayer of elairns, the following deseription setting forth in detail thin strippable nina material l21 is applied over the layer eertain illustrative embodiments of the 'nvention, th se of pressure sensitive adhesive. heing indieative, however, of hut a few of e various The stia'ppable nlm is easily torn frotn ar the ways in whieh the prineiples of the invention niay be 6 Shank the eyelet 17 and e reinforcing element 1S einployed. when the adhesive layer and the strippable nin-i ar ap- -rhe invention is nsti-ated hyethe drawings in which plied t th bese sheet before the button fastening elethe sarne numerals refer to eorresponding parts and in ments are applied. It is preferred th t the adhesive mateiial be applied to the baeking sheet as the first step in e of the elosure rneans, although the adhesive is a plan riew of the fastening means ae- GURE l invention:

H eording to this if desired, be applied at any stage in Vthe manufaes The ether segment 14 of the festenng means lne-e;

:button fastening element having the String attached, 1S adhesively secured to he Center 0f thc flap 23. AS shown, the String 19 may be Criss-Crossed several Utiles f n1 o e 'button to me other and then the free end Of the String is Gund 011C or me e t Cs around De bu l1 25 t two Segments e bearing a button fastening ele- Shanks- The broadened bases of the fastener baSe SGS- ment, one enly of said ly ts i ments, when formcd accordi to the PrefeX-x enxbQdia length of String Secured thereby to Said base Sheet and -Irxcnt of the itlv'entioxxy dStI-ibutc VVtlxe Stresses upon the the Qlher of said button fastening elements being adapted fastener over a Wide are t provide a strong Closurcto receive a portion of the String from the rsl: element, By this means, the envelope 2 has been provided with 30 Said button fastening elem being secured o e e a temporary Closure enabling it to qualify for finir C1255 sheet generally Spa ed inwardly fr0 apCCS of said mailing or o be Opened Closed repeatedly Without equilateral txang es an d line of pclforations being wearing VC the Closure me S will readily be seen generally 11s ndienlnr to e. line between use buttons. tlia tlAC fastening eans of ttxis invention ma Sed Q Insure mea-11S according to Claim 1 ful-ther Charto Convert envelopes of all Sizes, Shapes, materials, and 35 actexized in that Said adhesive material is a meislure Senthe likeA sinive glue.

Referring no )FIGURE 5, there is here shown e. further use for the Closure means ef this .tl`*f:1:xl;ionA The fastener References Cited in the alc of l'xis patent 1 s used to seeure e roll of sheet materiel 24 n einst UNITED STATES PATENTS unwinding much in the manner of rubber band. ne 40 1 2 9 831 beek surface of the exible bese sheet may be ednesively 1'26703 Secured to one outside d ge of e rolled Sheet material FOREIGN PATENTS e stx-lng te be wrapped 495 58o une@ around the Opposite button, then use fastening means 1o so F s Ang 7, 1919 

